Determining the best location of carbon dioxide sensor
Lobanova, Anastasia (2010)
Mikkelin ammattikorkeakoulu
2010
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201102072108
https://urn.fi/URN:NBN:fi:amk-201102072108
Tiivistelmä
Aim of this Thesis work was to give a review to demand control ventilation system and to investigate a better location of building automation systems carbon dioxide sensor in recently renovated D-Building of Mikkeli University of Applied Sciences. There was installed a de-mand control ventilation system and occupants are complaining about bad indoor air quality. One classroom was chosen for investigations.
Research was conducted with four stages. First, carbon dioxide concentrations measured by existing sensor were compared to two calibrated detectors. Second, measurements of maxi-mum and minimum air flow rates were conducted. Third, levels of carbon dioxide were measured during long occupancy period in three different places: one – at location of existing sensor, two other locations were chosen according to guidelines for wall-mounted sensors given by ASHRAE organization. Last stage was to determine the air flow patterns in the room.
Results of this work are given in graphs and tables. Due to low occupancy density during measurements it is possible only to assume that the better place for sensors location is ac-cording to ASHRAE recommendations, but here more investigations are needed.
Research was conducted with four stages. First, carbon dioxide concentrations measured by existing sensor were compared to two calibrated detectors. Second, measurements of maxi-mum and minimum air flow rates were conducted. Third, levels of carbon dioxide were measured during long occupancy period in three different places: one – at location of existing sensor, two other locations were chosen according to guidelines for wall-mounted sensors given by ASHRAE organization. Last stage was to determine the air flow patterns in the room.
Results of this work are given in graphs and tables. Due to low occupancy density during measurements it is possible only to assume that the better place for sensors location is ac-cording to ASHRAE recommendations, but here more investigations are needed.